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This is the only four-port regulator on the market that uses a "soft seat" design, eliminating pressure creep at idle and on the throttle stop. Used by many of the best "Super Class" racers in the country. Adjustable from 5-15 PSI.

This exclusive design ensures precise pressure control, resulting in more consistent E.T.s. The A4 Carbureted Regulator was engineered for use with our A2000 Fuel Pump.

Standard static flow design, no return line required.
Four -6 AN outlet ports and 1/8" NPT gauge port.
Two -10 AN inlet ports for plumbing flexibility.
Choose the one that works best in your mounting location and block the other, or flow through to a second regulator for dedicated nitrous fuel pressure control.




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